How does Python’s list comprehension work?

Question

ICSM Computer · Answer

Python’s list comprehension is a concise way to create lists by applying an expression to each item in an iterable, optionally filtering elements with a condition—all in a single, readable line. Basic Syntax expression — what you want to produce for each item (can be just the item itself or a transformed version)item — a variable representing each element from the iterableiterable — any sequence or iterable (like a list, range, string, etc.)if condition — optional filter to include only items that satisfy the condition Example 1: Square numbers from 0 to 4 Example 2: Filter even numbers and double them How it works: Iterates over each element in iterable.Applies the optional if condition to filter elements.Evaluates the expression for each filtered element.Collects all results into a new list. Benefits More concise and readable than using loops to build lists.Often faster than equivalent for loops in Python due to internal optimizations.

forum

How does Python’s list comprehension work?

Can you answer this question?

1 Answers

Basic Syntax

Example 1: Square numbers from 0 to 4

Example 2: Filter even numbers and double them

How it works:

Benefits